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- BC-DH2004 catalyst was used in dehydrogenation of sec-butyl alcohol(SBA)to prepare methyl ethyl ketone(MEK). 采用BC-DH2004催化剂进行仲丁醇脱氢合成甲乙酮的研究。
- A modified procedure for preparing methyl mercaptan from dimethyl sulfate and thiourea is presented. 提出一种以硫酸二甲酯和硫脲为基本原料的合成甲硫酸的改进方法。
- Experience is their preparation for giving advice. 经验为她们进行咨询作了准备。
- The advertising campaign is still in preparation. 广告宣传攻势仍在准备中。
- You can't pass an exam without preparation. 不准备就考不及格。
- Progress in Catalysts of Preparing Methyl Ethyl Carbonate 合成碳酸甲乙酯的研究进展
- A drug or preparation containing arsenic. 砷化合物含砷的药剂或制剂
- The dictionary is now in rapid preparation. 这本词典现在正在迅速编写之中。
- The preparation for his cough included camphor. 为医治他的咳嗽而调制的药中包括樟脑。
- Glycerol or a preparation of glycerol. 甘油，丙三醇甘油或丙三醇配制品
- Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
- Made up without preparation; improvised. 即兴的不经准备而作的; 即兴的
- Care or preparation in advance; foresight. 先见，提前考虑或准备; 远见
- Years of work have gone into the preparation of this dictionary. 这部词典的筹备工作已进行了多年。
- Construction of methyl alcohol production project. 甲醇生产项目建设。
- Produced from lauryl alcohol and methyl laurate. 以硬酯醇及甲基棕榈。
- They have made good preparation for the upcoming elections. 他们对即将到来的选举作了充分的准备。
- Produced from stearyl alcohol and methyl palmitate. 以硬酯醇及甲基二十二。
- He didn't do any preparation for this exam, so he failed. 他考试前没做任何准备，所以不及格。
- Produced from stearyl alcohol and methyl behenate. 可按客户要求生产。
